M50 non-shrinkage mortar liquidity standards M50 non-shrinkage mortar liquidity standards is what M50 liquidity non-shrinkage mortar is used in high-speed railway bridge bearings installed a gravity grouting material, execute the railway standard! According to the different support, generally divided into the pot bearing and ball bearing, execution of the standard TB/T2331 -, respectively 2013 railway bridge pot bearing, TB/T3320 - 2013 ball bearing of railway Bridges.
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